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- (No Model.)

J. B. FESSY.

MEANS FOR BLBAGHING PAPER PULP, &c. I No. 3111425. Patented Jan. 27, 1885.

UNITED STATES PATENT: OFF CE,

JEAN B. FEssY, OFWSAINT-ETIEN'NE, Lorna, FRANCE,

MEANS FOR BLEACHING PAPER-PULP',-&.c

SPECIFICATION forming part 01' Letters Patent No. 311,425, dated January 27, 1885. 7 Application filed time so, 1884. (No model.) Patented in France May 5, 1684, No. 161.904 in England May 9,1884, No. 1,511, and

- in Germany May 17. 1884.

To all whom it may concern.- nozzle,0. through which the bleaching-liquids 50 Be it known that I, JEAN BAPTISTE FESSY, to be pulverizedpass by separate branches L, a citizen of the Republic of France, and reprovided with stop-cocks M K, so that thesiding in Saint-Etienne, Loire, France, have said liquids are instantly combined in any re- 5 invented Improvements in Bleaching Paperquired proportions capable of being regulated Pulp or other Materials, of which the followby the stop-cocks M K. The said two nozzles 55 ing is a specification; constitutean arrangement resemblingaspray- Hitherto the bleaching of materials for paproducer inclosed in the funnel or trumpet per-making and the. bleaching of other mamouth FG H J, and produce a thorough pulro terials has been effected by immersion in baths ve'rization and mixture of the bleachingagents,

of different kinds,whereby there results a conwhich issue therefrom in a fine state of divis- 6o .siderable loss of the bleaching agents, in con-- ion and actinstantaneou'sly upon the pulp "or sequence of a great quantity being required other materials to be bleached or decolorized. for'the immersion of the materials; The stop-cock B on the pipe for the steam or This invention has for its object to effect other fluid under'pressure enables the supeconomy in the cost of bleaching by'reason ply and pressure to be regulated to give the 6 of the small quantity of bleaching agents rcproper pulverization of the agents for their quired, and to save time, owing to the rapiddue action on the materials'to be bleached'or ity with which the process can be performed, decoloriz'ed The steam or other fluid under by effecting the thorough utilization of the acpressure,eseaping bythe one nozzle,draw's the.

' tion. which develops from the decolorizing liquids or agents from their respective sup- 70 agents when in a nascent condition. ply pipes and nozzles in regulated quantities To attain these objects according to this according to the adjustmentof the stop-cocks,

invention, the bleaching or decolorizing is and instantaneously pulverizes orsprays and effected by submitting the materials to be thoroughlyrcombinesthcsame, and this finely bleached to the action of a solution or solupulverized or sprayed combination acts upon 75 tions of the'bleaching -or decolorizing agents the matter to ,.be bleached, and efl'ects the said when in a state of pulyerization, spray, or bleaching by instantaneous reactiom fine division, which may be eflected by caus- .I do not necessarily limit myself to the pulgcing the said agents,while under pressure, to ,verizing apparatus hereinbefore described;

' impinge or come in contact with a resisting but it is-the best with which I am acquainted 80 medium, or to be'dispersed by steam or comfor the purposes of this invention, the essence pressed air, and I submit the materials to'be of which is the instantaneous pulverizing and bleached to the action of this finely-divided combinationof the bleaching agents which agent or agents, wherebythe -bleaching or wilLgive the reaction necessary for. bleaching decolorizing can be effected readily and to or decolorizing. The bleaching thus effected 8 any required degree. The bleaching agents does not deteriorate, and by its aid papermay be of g the usual kind but fordecolorizpulp (usually very difficult'tobleach) can be ing paper-pulp I prefer to use chlorous acid.- bleached with rapidity, and it IS possible to 40 In the drawings, Figure l-is an end eleva- 'bleach -pulp which hitherto could not be tion, and Fig. 2 a side elevation. I bleached in a practically-available manner, 0 I may employ for the purposes of this inand facility is also'given for obtaining an abvention an apparatus analogous to the 'pulsolutely regularand uniform bleachlng to any verizer of Koerting Brothers, butconstructed. desired tint, as the operationcan be arrested as follows: The steam'or other fluid passes at any desired stage; There is-great economy through a tube, A D, Figs. 1 and 2, and stop: in the bleaching agents, as. anysurplus 1s not 5 cock B into a nozzle, E, from whence it issues wasted. I under pressure into a funnel, F G H J, into I may useasthe means of pulverizing steam which opens in front of the sadnozzle E a oranyotherchemicalormechan1calagent,such

o decolorizing paper-pulp and similar materials,

said process consisting in applying the coloring agent in a pulverized or sprayedcondition to the materials, substantially as set forth.

r In testimony whereof I have signed my name to this specification in the presence of two subr scribing Witnesses.

J. B. FESSY.

Witnesses:

MIQUEL, A. MIOHAUD. 

